mirror of
https://github.com/reactos/reactos.git
synced 2024-11-05 22:26:39 +00:00
710 lines
18 KiB
C
710 lines
18 KiB
C
/*
|
|
* SHLWAPI Registry Stream functions
|
|
*
|
|
* Copyright 1999 Juergen Schmied
|
|
* Copyright 2002 Jon Griffiths
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
|
|
*/
|
|
|
|
#include <stdarg.h>
|
|
#include <string.h>
|
|
|
|
#define COBJMACROS
|
|
|
|
#include "winerror.h"
|
|
#include "windef.h"
|
|
#include "winbase.h"
|
|
#include "objbase.h"
|
|
#include "winreg.h"
|
|
#include "shlwapi.h"
|
|
|
|
#include "wine/debug.h"
|
|
|
|
WINE_DEFAULT_DEBUG_CHANNEL(shell);
|
|
|
|
typedef struct
|
|
{
|
|
const IStreamVtbl *lpVtbl;
|
|
LONG ref;
|
|
HKEY hKey;
|
|
LPBYTE pbBuffer;
|
|
DWORD dwLength;
|
|
DWORD dwPos;
|
|
DWORD dwMode;
|
|
union {
|
|
LPSTR keyNameA;
|
|
LPWSTR keyNameW;
|
|
}u;
|
|
BOOL bUnicode;
|
|
} ISHRegStream;
|
|
|
|
/**************************************************************************
|
|
* IStream_fnQueryInterface
|
|
*/
|
|
static HRESULT WINAPI IStream_fnQueryInterface(IStream *iface, REFIID riid, LPVOID *ppvObj)
|
|
{
|
|
ISHRegStream *This = (ISHRegStream *)iface;
|
|
|
|
TRACE("(%p)->(\n\tIID:\t%s,%p)\n",This,debugstr_guid(riid),ppvObj);
|
|
|
|
*ppvObj = NULL;
|
|
|
|
if(IsEqualIID(riid, &IID_IUnknown)) /*IUnknown*/
|
|
*ppvObj = This;
|
|
else if(IsEqualIID(riid, &IID_IStream)) /*IStream*/
|
|
*ppvObj = This;
|
|
|
|
if(*ppvObj)
|
|
{
|
|
IStream_AddRef((IStream*)*ppvObj);
|
|
TRACE("-- Interface: (%p)->(%p)\n",ppvObj,*ppvObj);
|
|
return S_OK;
|
|
}
|
|
TRACE("-- Interface: E_NOINTERFACE\n");
|
|
return E_NOINTERFACE;
|
|
}
|
|
|
|
/**************************************************************************
|
|
* IStream_fnAddRef
|
|
*/
|
|
static ULONG WINAPI IStream_fnAddRef(IStream *iface)
|
|
{
|
|
ISHRegStream *This = (ISHRegStream *)iface;
|
|
ULONG refCount = InterlockedIncrement(&This->ref);
|
|
|
|
TRACE("(%p)->(ref before=%u)\n",This, refCount - 1);
|
|
|
|
return refCount;
|
|
}
|
|
|
|
/**************************************************************************
|
|
* IStream_fnRelease
|
|
*/
|
|
static ULONG WINAPI IStream_fnRelease(IStream *iface)
|
|
{
|
|
ISHRegStream *This = (ISHRegStream *)iface;
|
|
ULONG refCount = InterlockedDecrement(&This->ref);
|
|
|
|
TRACE("(%p)->(ref before=%u)\n",This, refCount + 1);
|
|
|
|
if (!refCount)
|
|
{
|
|
TRACE(" destroying SHReg IStream (%p)\n",This);
|
|
|
|
if (This->hKey)
|
|
{
|
|
/* write back data in REG_BINARY */
|
|
if (This->dwMode == STGM_READWRITE || This->dwMode == STGM_WRITE)
|
|
{
|
|
if (This->dwLength)
|
|
{
|
|
if (This->bUnicode)
|
|
RegSetValueExW(This->hKey, This->u.keyNameW, 0, REG_BINARY,
|
|
(const BYTE *) This->pbBuffer, This->dwLength);
|
|
else
|
|
RegSetValueExA(This->hKey, This->u.keyNameA, 0, REG_BINARY,
|
|
(const BYTE *) This->pbBuffer, This->dwLength);
|
|
}
|
|
else
|
|
{
|
|
if (This->bUnicode)
|
|
RegDeleteValueW(This->hKey, This->u.keyNameW);
|
|
else
|
|
RegDeleteValueA(This->hKey, This->u.keyNameA);
|
|
}
|
|
}
|
|
|
|
RegCloseKey(This->hKey);
|
|
}
|
|
|
|
HeapFree(GetProcessHeap(),0,This->u.keyNameA);
|
|
HeapFree(GetProcessHeap(),0,This->pbBuffer);
|
|
HeapFree(GetProcessHeap(),0,This);
|
|
return 0;
|
|
}
|
|
|
|
return refCount;
|
|
}
|
|
|
|
/**************************************************************************
|
|
* IStream_fnRead
|
|
*/
|
|
static HRESULT WINAPI IStream_fnRead (IStream * iface, void* pv, ULONG cb, ULONG* pcbRead)
|
|
{
|
|
ISHRegStream *This = (ISHRegStream *)iface;
|
|
DWORD dwBytesToRead;
|
|
|
|
TRACE("(%p)->(%p,0x%08x,%p)\n",This, pv, cb, pcbRead);
|
|
|
|
if (This->dwPos >= This->dwLength)
|
|
dwBytesToRead = 0;
|
|
else
|
|
dwBytesToRead = This->dwLength - This->dwPos;
|
|
|
|
dwBytesToRead = (cb > dwBytesToRead) ? dwBytesToRead : cb;
|
|
if (dwBytesToRead != 0) /* not at end of buffer and we want to read something */
|
|
{
|
|
memmove(pv, This->pbBuffer + This->dwPos, dwBytesToRead);
|
|
This->dwPos += dwBytesToRead; /* adjust pointer */
|
|
}
|
|
|
|
if (pcbRead)
|
|
*pcbRead = dwBytesToRead;
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
/**************************************************************************
|
|
* IStream_fnWrite
|
|
*/
|
|
static HRESULT WINAPI IStream_fnWrite (IStream * iface, const void* pv, ULONG cb, ULONG* pcbWritten)
|
|
{
|
|
ISHRegStream *This = (ISHRegStream *)iface;
|
|
DWORD newLen = This->dwPos + cb;
|
|
|
|
TRACE("(%p, %p, %d, %p)\n",This, pv, cb, pcbWritten);
|
|
|
|
if (newLen < This->dwPos) /* overflow */
|
|
return STG_E_INSUFFICIENTMEMORY;
|
|
|
|
if (newLen > This->dwLength)
|
|
{
|
|
LPBYTE newBuf = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, This->pbBuffer, newLen);
|
|
if (!newBuf)
|
|
return STG_E_INSUFFICIENTMEMORY;
|
|
|
|
This->dwLength = newLen;
|
|
This->pbBuffer = newBuf;
|
|
}
|
|
memmove(This->pbBuffer + This->dwPos, pv, cb);
|
|
This->dwPos += cb; /* adjust pointer */
|
|
|
|
if (pcbWritten)
|
|
*pcbWritten = cb;
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
/**************************************************************************
|
|
* IStream_fnSeek
|
|
*/
|
|
static HRESULT WINAPI IStream_fnSeek (IStream * iface, LARGE_INTEGER dlibMove, DWORD dwOrigin, ULARGE_INTEGER* plibNewPosition)
|
|
{
|
|
ISHRegStream *This = (ISHRegStream *)iface;
|
|
LARGE_INTEGER tmp;
|
|
TRACE("(%p, %s, %d %p)\n", This,
|
|
wine_dbgstr_longlong(dlibMove.QuadPart), dwOrigin, plibNewPosition);
|
|
|
|
if (dwOrigin == STREAM_SEEK_SET)
|
|
tmp = dlibMove;
|
|
else if (dwOrigin == STREAM_SEEK_CUR)
|
|
tmp.QuadPart = This->dwPos + dlibMove.QuadPart;
|
|
else if (dwOrigin == STREAM_SEEK_END)
|
|
tmp.QuadPart = This->dwLength + dlibMove.QuadPart;
|
|
else
|
|
return STG_E_INVALIDPARAMETER;
|
|
|
|
if (tmp.QuadPart < 0)
|
|
return STG_E_INVALIDFUNCTION;
|
|
|
|
/* we cut off the high part here */
|
|
This->dwPos = tmp.u.LowPart;
|
|
|
|
if (plibNewPosition)
|
|
plibNewPosition->QuadPart = This->dwPos;
|
|
return S_OK;
|
|
}
|
|
|
|
/**************************************************************************
|
|
* IStream_fnSetSize
|
|
*/
|
|
static HRESULT WINAPI IStream_fnSetSize (IStream * iface, ULARGE_INTEGER libNewSize)
|
|
{
|
|
ISHRegStream *This = (ISHRegStream *)iface;
|
|
DWORD newLen;
|
|
LPBYTE newBuf;
|
|
|
|
TRACE("(%p, %s)\n", This, wine_dbgstr_longlong(libNewSize.QuadPart));
|
|
|
|
/* we cut off the high part here */
|
|
newLen = libNewSize.u.LowPart;
|
|
newBuf = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, This->pbBuffer, newLen);
|
|
if (!newBuf)
|
|
return STG_E_INSUFFICIENTMEMORY;
|
|
|
|
This->pbBuffer = newBuf;
|
|
This->dwLength = newLen;
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
/**************************************************************************
|
|
* IStream_fnCopyTo
|
|
*/
|
|
static HRESULT WINAPI IStream_fnCopyTo (IStream * iface, IStream* pstm, ULARGE_INTEGER cb, ULARGE_INTEGER* pcbRead, ULARGE_INTEGER* pcbWritten)
|
|
{
|
|
ISHRegStream *This = (ISHRegStream *)iface;
|
|
|
|
TRACE("(%p)\n",This);
|
|
if (pcbRead)
|
|
pcbRead->QuadPart = 0;
|
|
if (pcbWritten)
|
|
pcbWritten->QuadPart = 0;
|
|
|
|
/* TODO implement */
|
|
return E_NOTIMPL;
|
|
}
|
|
|
|
/**************************************************************************
|
|
* IStream_fnCommit
|
|
*/
|
|
static HRESULT WINAPI IStream_fnCommit (IStream * iface, DWORD grfCommitFlags)
|
|
{
|
|
ISHRegStream *This = (ISHRegStream *)iface;
|
|
|
|
TRACE("(%p)\n",This);
|
|
|
|
/* commit not supported by this stream */
|
|
return E_NOTIMPL;
|
|
}
|
|
|
|
/**************************************************************************
|
|
* IStream_fnRevert
|
|
*/
|
|
static HRESULT WINAPI IStream_fnRevert (IStream * iface)
|
|
{
|
|
ISHRegStream *This = (ISHRegStream *)iface;
|
|
|
|
TRACE("(%p)\n",This);
|
|
|
|
/* revert not supported by this stream */
|
|
return E_NOTIMPL;
|
|
}
|
|
|
|
/**************************************************************************
|
|
* IStream_fnLockUnlockRegion
|
|
*/
|
|
static HRESULT WINAPI IStream_fnLockUnlockRegion (IStream * iface, ULARGE_INTEGER libOffset, ULARGE_INTEGER cb, DWORD dwLockType)
|
|
{
|
|
ISHRegStream *This = (ISHRegStream *)iface;
|
|
|
|
TRACE("(%p)\n",This);
|
|
|
|
/* lock/unlock not supported by this stream */
|
|
return E_NOTIMPL;
|
|
}
|
|
|
|
/*************************************************************************
|
|
* IStream_fnStat
|
|
*/
|
|
static HRESULT WINAPI IStream_fnStat (IStream * iface, STATSTG* pstatstg, DWORD grfStatFlag)
|
|
{
|
|
ISHRegStream *This = (ISHRegStream *)iface;
|
|
|
|
TRACE("(%p, %p, %d)\n",This,pstatstg,grfStatFlag);
|
|
|
|
pstatstg->pwcsName = NULL;
|
|
pstatstg->type = STGTY_STREAM;
|
|
pstatstg->cbSize.QuadPart = This->dwLength;
|
|
pstatstg->mtime.dwHighDateTime = 0;
|
|
pstatstg->mtime.dwLowDateTime = 0;
|
|
pstatstg->ctime.dwHighDateTime = 0;
|
|
pstatstg->ctime.dwLowDateTime = 0;
|
|
pstatstg->atime.dwHighDateTime = 0;
|
|
pstatstg->atime.dwLowDateTime = 0;
|
|
pstatstg->grfMode = This->dwMode;
|
|
pstatstg->grfLocksSupported = 0;
|
|
pstatstg->clsid = CLSID_NULL;
|
|
pstatstg->grfStateBits = 0;
|
|
pstatstg->reserved = 0;
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
/*************************************************************************
|
|
* IStream_fnClone
|
|
*/
|
|
static HRESULT WINAPI IStream_fnClone (IStream * iface, IStream** ppstm)
|
|
{
|
|
ISHRegStream *This = (ISHRegStream *)iface;
|
|
|
|
TRACE("(%p)\n",This);
|
|
*ppstm = NULL;
|
|
|
|
/* clone not supported by this stream */
|
|
return E_NOTIMPL;
|
|
}
|
|
|
|
static const IStreamVtbl rstvt =
|
|
{
|
|
IStream_fnQueryInterface,
|
|
IStream_fnAddRef,
|
|
IStream_fnRelease,
|
|
IStream_fnRead,
|
|
IStream_fnWrite,
|
|
IStream_fnSeek,
|
|
IStream_fnSetSize,
|
|
IStream_fnCopyTo,
|
|
IStream_fnCommit,
|
|
IStream_fnRevert,
|
|
IStream_fnLockUnlockRegion,
|
|
IStream_fnLockUnlockRegion,
|
|
IStream_fnStat,
|
|
IStream_fnClone
|
|
};
|
|
|
|
/* Methods overridden by the dummy stream */
|
|
|
|
/**************************************************************************
|
|
* IStream_fnAddRefDummy
|
|
*/
|
|
static ULONG WINAPI IStream_fnAddRefDummy(IStream *iface)
|
|
{
|
|
ISHRegStream *This = (ISHRegStream *)iface;
|
|
TRACE("(%p)\n", This);
|
|
return 2;
|
|
}
|
|
|
|
/**************************************************************************
|
|
* IStream_fnReleaseDummy
|
|
*/
|
|
static ULONG WINAPI IStream_fnReleaseDummy(IStream *iface)
|
|
{
|
|
ISHRegStream *This = (ISHRegStream *)iface;
|
|
TRACE("(%p)\n", This);
|
|
return 1;
|
|
}
|
|
|
|
/**************************************************************************
|
|
* IStream_fnReadDummy
|
|
*/
|
|
static HRESULT WINAPI IStream_fnReadDummy(IStream *iface, LPVOID pv, ULONG cb, ULONG* pcbRead)
|
|
{
|
|
if (pcbRead)
|
|
*pcbRead = 0;
|
|
return E_NOTIMPL;
|
|
}
|
|
|
|
static const IStreamVtbl DummyRegStreamVTable =
|
|
{
|
|
IStream_fnQueryInterface,
|
|
IStream_fnAddRefDummy, /* Overridden */
|
|
IStream_fnReleaseDummy, /* Overridden */
|
|
IStream_fnReadDummy, /* Overridden */
|
|
IStream_fnWrite,
|
|
IStream_fnSeek,
|
|
IStream_fnSetSize,
|
|
IStream_fnCopyTo,
|
|
IStream_fnCommit,
|
|
IStream_fnRevert,
|
|
IStream_fnLockUnlockRegion,
|
|
IStream_fnLockUnlockRegion,
|
|
IStream_fnStat,
|
|
IStream_fnClone
|
|
};
|
|
|
|
/* Dummy registry stream object */
|
|
static ISHRegStream rsDummyRegStream =
|
|
{
|
|
&DummyRegStreamVTable,
|
|
1,
|
|
NULL,
|
|
NULL,
|
|
0,
|
|
0,
|
|
STGM_READWRITE,
|
|
{NULL},
|
|
FALSE
|
|
};
|
|
|
|
/**************************************************************************
|
|
* IStream_Create
|
|
*
|
|
* Internal helper: Create and initialise a new registry stream object.
|
|
*/
|
|
static ISHRegStream *IStream_Create(HKEY hKey, LPBYTE pbBuffer, DWORD dwLength)
|
|
{
|
|
ISHRegStream* regStream;
|
|
|
|
regStream = HeapAlloc(GetProcessHeap(), 0, sizeof(ISHRegStream));
|
|
|
|
if (regStream)
|
|
{
|
|
regStream->lpVtbl = &rstvt;
|
|
regStream->ref = 1;
|
|
regStream->hKey = hKey;
|
|
regStream->pbBuffer = pbBuffer;
|
|
regStream->dwLength = dwLength;
|
|
regStream->dwPos = 0;
|
|
regStream->dwMode = STGM_READWRITE;
|
|
regStream->u.keyNameA = NULL;
|
|
regStream->bUnicode = FALSE;
|
|
}
|
|
TRACE ("Returning %p\n", regStream);
|
|
return regStream;
|
|
}
|
|
|
|
/*************************************************************************
|
|
* SHOpenRegStream2A [SHLWAPI.@]
|
|
*
|
|
* Create a stream to read binary registry data.
|
|
*
|
|
* PARAMS
|
|
* hKey [I] Registry handle
|
|
* pszSubkey [I] The sub key name
|
|
* pszValue [I] The value name under the sub key
|
|
* dwMode [I] Unused
|
|
*
|
|
* RETURNS
|
|
* Success: An IStream interface referring to the registry data
|
|
* Failure: NULL, if the registry key could not be opened or is not binary.
|
|
*/
|
|
IStream * WINAPI SHOpenRegStream2A(HKEY hKey, LPCSTR pszSubkey,
|
|
LPCSTR pszValue,DWORD dwMode)
|
|
{
|
|
ISHRegStream *tmp;
|
|
HKEY hStrKey = NULL;
|
|
LPBYTE lpBuff = NULL;
|
|
DWORD dwLength = 0;
|
|
LONG ret;
|
|
|
|
TRACE("(%p,%s,%s,0x%08x)\n", hKey, pszSubkey, pszValue, dwMode);
|
|
|
|
if (dwMode == STGM_READ)
|
|
ret = RegOpenKeyExA(hKey, pszSubkey, 0, KEY_READ, &hStrKey);
|
|
else /* in write mode we make sure the subkey exits */
|
|
ret = RegCreateKeyExA(hKey, pszSubkey, 0, NULL, 0, KEY_READ | KEY_WRITE, NULL, &hStrKey, NULL);
|
|
|
|
if (ret == ERROR_SUCCESS)
|
|
{
|
|
if (dwMode == STGM_READ || dwMode == STGM_READWRITE)
|
|
{
|
|
/* read initial data */
|
|
ret = RegQueryValueExA(hStrKey, pszValue, 0, 0, 0, &dwLength);
|
|
if (ret == ERROR_SUCCESS && dwLength)
|
|
{
|
|
lpBuff = HeapAlloc(GetProcessHeap(), 0, dwLength);
|
|
RegQueryValueExA(hStrKey, pszValue, 0, 0, lpBuff, &dwLength);
|
|
}
|
|
}
|
|
|
|
if (!dwLength)
|
|
lpBuff = HeapAlloc(GetProcessHeap(), 0, dwLength);
|
|
|
|
tmp = IStream_Create(hStrKey, lpBuff, dwLength);
|
|
if(tmp)
|
|
{
|
|
if(pszValue)
|
|
{
|
|
int len = lstrlenA(pszValue) + 1;
|
|
tmp->u.keyNameA = HeapAlloc(GetProcessHeap(), 0, len);
|
|
memcpy(tmp->u.keyNameA, pszValue, len);
|
|
}
|
|
|
|
tmp->dwMode = dwMode;
|
|
tmp->bUnicode = FALSE;
|
|
return (IStream *)tmp;
|
|
}
|
|
}
|
|
|
|
HeapFree(GetProcessHeap(), 0, lpBuff);
|
|
if (hStrKey)
|
|
RegCloseKey(hStrKey);
|
|
return NULL;
|
|
}
|
|
|
|
/*************************************************************************
|
|
* SHOpenRegStream2W [SHLWAPI.@]
|
|
*
|
|
* See SHOpenRegStream2A.
|
|
*/
|
|
IStream * WINAPI SHOpenRegStream2W(HKEY hKey, LPCWSTR pszSubkey,
|
|
LPCWSTR pszValue, DWORD dwMode)
|
|
{
|
|
ISHRegStream *tmp;
|
|
HKEY hStrKey = NULL;
|
|
LPBYTE lpBuff = NULL;
|
|
DWORD dwLength = 0;
|
|
LONG ret;
|
|
|
|
TRACE("(%p,%s,%s,0x%08x)\n", hKey, debugstr_w(pszSubkey),
|
|
debugstr_w(pszValue), dwMode);
|
|
|
|
if (dwMode == STGM_READ)
|
|
ret = RegOpenKeyExW(hKey, pszSubkey, 0, KEY_READ, &hStrKey);
|
|
else /* in write mode we make sure the subkey exits */
|
|
ret = RegCreateKeyExW(hKey, pszSubkey, 0, NULL, 0, KEY_READ | KEY_WRITE, NULL, &hStrKey, NULL);
|
|
|
|
if (ret == ERROR_SUCCESS)
|
|
{
|
|
if (dwMode == STGM_READ || dwMode == STGM_READWRITE)
|
|
{
|
|
/* read initial data */
|
|
ret = RegQueryValueExW(hStrKey, pszValue, 0, 0, 0, &dwLength);
|
|
if (ret == ERROR_SUCCESS && dwLength)
|
|
{
|
|
lpBuff = HeapAlloc(GetProcessHeap(), 0, dwLength);
|
|
RegQueryValueExW(hStrKey, pszValue, 0, 0, lpBuff, &dwLength);
|
|
}
|
|
}
|
|
|
|
if (!dwLength)
|
|
lpBuff = HeapAlloc(GetProcessHeap(), 0, dwLength);
|
|
|
|
tmp = IStream_Create(hStrKey, lpBuff, dwLength);
|
|
if(tmp)
|
|
{
|
|
if(pszValue)
|
|
{
|
|
int len = lstrlenW(pszValue) + 1;
|
|
tmp->u.keyNameW = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
|
|
memcpy(tmp->u.keyNameW, pszValue, len * sizeof(WCHAR));
|
|
}
|
|
|
|
tmp->dwMode = dwMode;
|
|
tmp->bUnicode = TRUE;
|
|
return (IStream *)tmp;
|
|
}
|
|
}
|
|
|
|
HeapFree(GetProcessHeap(), 0, lpBuff);
|
|
if (hStrKey)
|
|
RegCloseKey(hStrKey);
|
|
return NULL;
|
|
}
|
|
|
|
/*************************************************************************
|
|
* SHOpenRegStreamA [SHLWAPI.@]
|
|
*
|
|
* Create a stream to read binary registry data.
|
|
*
|
|
* PARAMS
|
|
* hKey [I] Registry handle
|
|
* pszSubkey [I] The sub key name
|
|
* pszValue [I] The value name under the sub key
|
|
* dwMode [I] STGM mode for opening the file
|
|
*
|
|
* RETURNS
|
|
* Success: An IStream interface referring to the registry data
|
|
* Failure: If the registry key could not be opened or is not binary,
|
|
* A dummy (empty) IStream object is returned.
|
|
*/
|
|
IStream * WINAPI SHOpenRegStreamA(HKEY hkey, LPCSTR pszSubkey,
|
|
LPCSTR pszValue, DWORD dwMode)
|
|
{
|
|
IStream *iStream;
|
|
|
|
TRACE("(%p,%s,%s,0x%08x)\n", hkey, pszSubkey, pszValue, dwMode);
|
|
|
|
iStream = SHOpenRegStream2A(hkey, pszSubkey, pszValue, dwMode);
|
|
return iStream ? iStream : (IStream *)&rsDummyRegStream;
|
|
}
|
|
|
|
/*************************************************************************
|
|
* SHOpenRegStreamW [SHLWAPI.@]
|
|
*
|
|
* See SHOpenRegStreamA.
|
|
*/
|
|
IStream * WINAPI SHOpenRegStreamW(HKEY hkey, LPCWSTR pszSubkey,
|
|
LPCWSTR pszValue, DWORD dwMode)
|
|
{
|
|
IStream *iStream;
|
|
|
|
TRACE("(%p,%s,%s,0x%08x)\n", hkey, debugstr_w(pszSubkey),
|
|
debugstr_w(pszValue), dwMode);
|
|
iStream = SHOpenRegStream2W(hkey, pszSubkey, pszValue, dwMode);
|
|
return iStream ? iStream : (IStream *)&rsDummyRegStream;
|
|
}
|
|
|
|
/*************************************************************************
|
|
* @ [SHLWAPI.12]
|
|
*
|
|
* Create an IStream object on a block of memory.
|
|
*
|
|
* PARAMS
|
|
* lpbData [I] Memory block to create the IStream object on
|
|
* dwDataLen [I] Length of data block
|
|
*
|
|
* RETURNS
|
|
* Success: A pointer to the IStream object.
|
|
* Failure: NULL, if any parameters are invalid or an error occurs.
|
|
*
|
|
* NOTES
|
|
* A copy of the memory pointed to by lpbData is made, and is freed
|
|
* when the stream is released.
|
|
*/
|
|
IStream * WINAPI SHCreateMemStream(const BYTE *lpbData, UINT dwDataLen)
|
|
{
|
|
IStream *iStrmRet = NULL;
|
|
LPBYTE lpbDup;
|
|
|
|
TRACE("(%p,%d)\n", lpbData, dwDataLen);
|
|
|
|
if (!lpbData)
|
|
dwDataLen = 0;
|
|
|
|
lpbDup = HeapAlloc(GetProcessHeap(), 0, dwDataLen);
|
|
|
|
if (lpbDup)
|
|
{
|
|
memcpy(lpbDup, lpbData, dwDataLen);
|
|
iStrmRet = (IStream *)IStream_Create(NULL, lpbDup, dwDataLen);
|
|
|
|
if (!iStrmRet)
|
|
HeapFree(GetProcessHeap(), 0, lpbDup);
|
|
}
|
|
return iStrmRet;
|
|
}
|
|
|
|
/*************************************************************************
|
|
* SHCreateStreamWrapper [SHLWAPI.@]
|
|
*
|
|
* Create an IStream object on a block of memory.
|
|
*
|
|
* PARAMS
|
|
* lpbData [I] Memory block to create the IStream object on
|
|
* dwDataLen [I] Length of data block
|
|
* dwReserved [I] Reserved, Must be 0.
|
|
* lppStream [O] Destination for IStream object
|
|
*
|
|
* RETURNS
|
|
* Success: S_OK. lppStream contains the new IStream object.
|
|
* Failure: E_INVALIDARG, if any parameters are invalid,
|
|
* E_OUTOFMEMORY if memory allocation fails.
|
|
*
|
|
* NOTES
|
|
* The stream assumes ownership of the memory passed to it.
|
|
*/
|
|
HRESULT WINAPI SHCreateStreamWrapper(LPBYTE lpbData, DWORD dwDataLen,
|
|
DWORD dwReserved, IStream **lppStream)
|
|
{
|
|
IStream* lpStream;
|
|
|
|
if (lppStream)
|
|
*lppStream = NULL;
|
|
|
|
if(dwReserved || !lppStream)
|
|
return E_INVALIDARG;
|
|
|
|
lpStream = (IStream *)IStream_Create(NULL, lpbData, dwDataLen);
|
|
|
|
if(!lpStream)
|
|
return E_OUTOFMEMORY;
|
|
|
|
IStream_QueryInterface(lpStream, &IID_IStream, (void**)lppStream);
|
|
IStream_Release(lpStream);
|
|
return S_OK;
|
|
}
|